1212192 has 96 divisors (see below), whose sum is σ = 3749760. Its totient is φ = 380160.

The previous prime is 1212191. The next prime is 1212199. The reversal of 1212192 is 2912121.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is not an unprimeable number, because it can be changed into a prime (1212191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19842 + ... + 19902.

It is an arithmetic number, because the mean of its divisors is an integer number (39060).

2^1212192 is an apocalyptic number.

1212192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1874880).

1212192 is an abundant number, since it is smaller than the sum of its proper divisors (2537568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212192 is a wasteful number, since it uses less digits than its factorization.

1212192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 89 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

The square root of 1212192 is about 1100.9959127990. The cubic root of 1212192 is about 106.6245319696.

1212192 divided by its product of digits (72) gives a triangular number (16836 = T₁₈₃).

The spelling of 1212192 in words is "one million, two hundred twelve thousand, one hundred ninety-two".